unknown_field
HTTP status: 400 (Bad request)
Title: Unknown field
Cause
The body has a field the route does not document. param names the first one, and the detail lists up to ten. Remove it and send the request again. Free-form maps such as metadata accept any key.
How to fix it
Remove the field named in param from the body, or check its spelling against the API reference, then send the request again.
Remove the parameter named below and send the request again.
Every error carries requestId and the Request-Id header. Send it when you write to support.